2018-2019 Truck & Bus Radials Tyre Selection Reference Axle position Type of operation Steer (Front) Drive Trailer Long Distance Transport (one way transport distance : more than 300km) 107ZL, RY237 TY517(E), TY517 RY253, RY357, RY588 Regional Distance Transport (one way transport distance : 300km or less) 112R, 104ZR, RY023 TY607, TY303 RY023T, RY253, RY357 TY287, Y785R TY287, Y785R RY588, TY287, Y785R Y793R Y793R Y793R On/Off Road Short Distance Transport MY507, MY547, Y773 LY717, LY053 MY507A Short Distance,Urban, Local Multistop Transport RY537, MY248 RY537, MY248 RY537, MY248 ● Always deflate tyre completely before removing lock or side rings. ● Never use wheels of different manufacturers or different sizes. ● Never mount tyres on wheels which are damaged or not smooth and clean. ● Always clean and inspect wheel. Lubricate beads [and rim flanges for tubeless types], tube and rim side of flap with an approved rubber lubricant. ● Always be sure that all wheel components are properly seated before inflating. ● Always use an extension hose with gauge and clip-on chuck. ● Never inflate beyond 1.5 bar prior to placing the tyre/wheel assembly in a safety cage. ● Always use a safety cage or other restraining device when inflating the tyre to seat the beads and/or inflating the tyre to normal operating inflation pressure. ● Never stand, lean or reach over the tyre/wheel assembly during inflation. ● After beads are fully seated, adjust the tyre to recommended inflation pressure of vehicle manufacturer. ● Never mount radials and bias tyres on the same axle . Follow vehicle manufacturerʼs recommendations. ● Tyres must be removed from the vehicle when remaining tread depth reaches regulated minimum tread depth in a country. ● Stones, gravel and other foreign objects stuck in the tyre treads may damage the tyre. Remove foreign objects from the treads. ● Objects in the road such as potholes, glass, metal, rocks, wood debris, kerbstones and the likes that could damage a tyre should be a safely avoided. ● To preserve traffic safety and tyre life, YOKOHAMA recommends driving safely and avoiding from hard acceleration, braking or cornering in unnecessary situation. ● When you feel the vehicle unstable or feel unusual noise or vibration, stop your vehicle in a safe place and inspect tyres. Even if no visible defects are found, drive slowly and ask your tyre dealer to inspect such tyre as soon as possible. Never use a tyre under the following conditions and replace such tyre immediately: ● If the tread has worn to the tread wear indicator. ● If breaks in the fabric appear. ● If cords or wires are exposed. USER INFORMATION: Only specially trained personnel should mount tyres. Failure to comply with these tyre demounting/mounting safety precautions can cause the bead to break and the assembly to burst with sufficient force to cause serious injury or death. Moisture in a tyre can damage the casing. Stock tyres in dry area. Dry interior before mounting. Inflate with dry air. DISTRIBUTED BY: * Never use the unmatched tread pattern for their intended service conditions. Please consult YOKOHAMA distributors for detail, if some vehicle operations require specialized tyre fitment. * RY237 shall be used only on steer axle in long distance smooth road operation to deliver the maximum performance. * TY607 shall be used only on regional transport for maximum performance. * RY253 can be used on steer axle in long/regional operations too. * MY507A can be used on steer axle in on & off short distance operation too. * The steer tyres above might be used on drive axles in case of normal highway conditions. ● Availability of products shown in this table may vary from country to country. Please consult your YOKOHAMA distributor for local availability. Tyre Selection Guide 2017 by 01 CE242 FBIC Printed in Japan for Asia, Oceania http://www.y-yokohama.com/global/product/tire/
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2018-2019 Truck & Bus Radials
Tyre Selection Reference Axle position
Type of operation
Steer (Front) Drive TrailerLong Distance Transport
(one way transport distance : more than 300km) 107ZL, RY237 TY517(E), TY517 RY253, RY357, RY588
Regional Distance Transport(one way transport distance : 300km or less)
On/Off Road Short Distance Transport MY507, MY547, Y773 LY717, LY053 MY507A
Short Distance,Urban, Local Multistop Transport RY537, MY248 RY537, MY248 RY537, MY248
� Always deflate tyre completely before removing lock or side rings.� Never use wheels of different manufacturers or different sizes.� Never mount tyres on wheels which are damaged or not smooth and clean.� Always clean and inspect wheel. Lubricate beads [and rim flanges for tubeless
types], tube and rim side of flap with an approved rubber lubricant.� Always be sure that all wheel components are properly seated before inflating.� Always use an extension hose with gauge and clip-on chuck.� Never inflate beyond 1.5 bar prior to placing the tyre/wheel assembly in a
safety cage.� Always use a safety cage or other restraining device when inflating the tyre to
seat the beads and/or inflating the tyre to normal operating inflation pressure.� Never stand, lean or reach over the tyre/wheel assembly during inflation.� After beads are fully seated, adjust the tyre to recommended inflation pressure
of vehicle manufacturer.� Never mount radials and bias tyres on the same axle . Follow vehicle
manufacturerʼs recommendations.� Tyres must be removed from the vehicle when remaining tread depth reaches
regulated minimum tread depth in a country.
� Stones, gravel and other foreign objects stuck in the tyre treads may damage the tyre. Remove foreign objects from the treads.
� Objects in the road such as potholes, glass, metal, rocks, wood debris, kerbstones and the likes that could damage a tyre should be a safely avoided.
� To preserve traffic safety and tyre life, YOKOHAMA recommends driving safely and avoiding from hard acceleration, braking or cornering in unnecessary situation.
� When you feel the vehicle unstable or feel unusual noise or vibration, stop your vehicle in a safe place and inspect tyres. Even if no visible defects are found, drive slowly and ask your tyre dealer to inspect such tyre as soon as possible.
Never use a tyre under the following conditions and replace such tyre immediately:� If the tread has worn to the tread wear indicator.� If breaks in the fabric appear.� If cords or wires are exposed.
USER INFORMATION: Only specially trained personnel should mount tyres. Failure to comply with these tyre demounting/mounting safety precautions can cause the bead to break and the assembly to burst with sufficient force to cause serious injury or death.
Moisture in a tyre can damage the casing. Stock tyres in dry area. Dry interior before mounting. Inflate with dry air.
DISTRIBUTED BY:
* Never use the unmatched tread pattern for their intended service conditions. Please consult YOKOHAMA distributors for detail, if some vehicle operations require specialized tyre fitment. * RY237 shall be used only on steer axle in long distance smooth road operation to deliver the maximum performance.* TY607 shall be used only on regional transport for maximum performance. * RY253 can be used on steer axle in long/regional operations too. * MY507A can be used on steer axle in on & off short distance operation too. * The steer tyres above might be used on drive axles in case of normal highway conditions.� Availability of products shown in this table may vary from country to country. Please consult your YOKOHAMA distributor for local availability.
Tyre Selection Guide
2017 by01
CE242FBICPrinted in Japan for Asia, Oceania
http://www.y-yokohama.com/global/product/tire/
Delivering top quality YOKOHAMA Tyresto customers everywhere
Delivering top quality YOKOHAMA Tyresto customers everywhere
In this connection, we work to boost our technologies on a daily basis.We integrate not only our tyre plants in Japan but at our overseas locations with cutting-edge production facilities and sophisticated technology standards to produce the highest quality product.Our promise is to deliver products that customers love from our plants across the globe to customers around the world.
At YOKOHAMA, we are keenly aware of the changing times, which means we never lose our passion to continuously improve safety, quality, and performance — no matter where our tyres are produced.
In this connection, we work to boost our technologies on a daily basis.We integrate not only our tyre plants in Japan but at our overseas locations with cutting-edge production facilities and sophisticated technology standards to produce the highest quality product.Our promise is to deliver products that customers love from our plants across the globe to customers around the world.
At YOKOHAMA, we are keenly aware of the changing times, which means we never lose our passion to continuously improve safety, quality, and performance — no matter where our tyres are produced.
YOKOHAMA Global
We at YOKOHAMA will be celebrating our 100th anniversary in 2017.Ever since we were established, our focus as a tyre manufacturer has been to produce the highest quality tyres possible, since tyres are a component critical to vehicle safety. Thanks to the loyalty of our customers, our company now manufactures and delivers tyres to destinations around the world. We are pleased to provide this product that serves to support the daily lives of our customers and keep them fully satisfied.
We at YOKOHAMA will be celebrating our 100th anniversary in 2017.Ever since we were established, our focus as a tyre manufacturer has been to produce the highest quality tyres possible, since tyres are a component critical to vehicle safety. Thanks to the loyalty of our customers, our company now manufactures and delivers tyres to destinations around the world. We are pleased to provide this product that serves to support the daily lives of our customers and keep them fully satisfied.
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Head Office
Head Office
= Head Office= Sales Companies/ Operating Companies (Tyres)= Tyre Production Bases= R&D Base= Sales Companies/ OperatingCompanies (MB)= MB Production Bases= Natural Rubber Processing
YOKOHAMA DANMARK A/S
YOKOHAMA TIRE MANUFACTURING(THAILAND) CO., LTD.
YOKOHAMA TYRE VIETNAM INC.
YOKOHAMAAUSTRIA GmbH
ALLIANCE TIRE COMPANY LTD.ATC TIRES PRIVATE LTD.Dahej Plant
IMPORTANT NOTE: Do not mix different tyre size designations or constructions on the same axle. Always use the tyres for their intended service purpose. Please consult your YOKOHAMA distributor for details as some vehicle operations require specialized tyre fitment. *Some sizes of this tyre can be used on different axles. Please contact your local YOKOHAMA distributor for details.
Long Distance Transport P. 10 . 11
107ZL RY237
YOKOHAMA ORIGINAL TREAD PATTERN CODES RY : Rib (All-Positions/Steer/Trailer) TY : Traction Block (Drive) MY : Rib/Lug (Mixed Service) (All Positions/Steer/Trailer) LY : Lug (Drive) 107ZL : Rib (Zenvironment Series, Long Distance Steer) 104ZR : Rib (Zenvironment Series, Regional Distance Steer) 112R : Rib (Regional Distance Steer/All position)
Steer axle Drive axle Trailer axles
TY303M+STY607M+S
RY253RY023T
RY023
Regional Distance Transport P. 12 . 13 . 14 . 15
Steer axle Drive axle
MY547M+SMY507M+S MY507AM+SY773 LY053LY717M+S
On/Off Road Short Distance Transport P. 16 . 17
Trailer axlesDrive axleSteer axle/All positions
All positions
Short Distance, Urban, Local Multistop Transport/Light Truck P. 18
All positions
RY537 RY248
Light Truck
LT151R
Product Line-up
104ZR
Y785RTY287M+S Y793R
Trailer axles
RY253 RY357 RY588TY517(E)M+S TY517M+S
RY357 RY588
112R
NEW
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Research and Development Reliable technology based on world-class research and development is essential for developing and providing YOKOHAMA products that are safe and reliable, while also helping to preserve the environment. At every stage of design, testing and assessment, YOKOHAMA takes a comprehensive multi-faceted approach toward realising advances in macromolecular and other technologies to make materials and products as beneficial as possible.
RADIC (Research and Development Integrated Center) has been at the core of YOKOHAMAʼs leading-edge R&D operations since being established in 1991. State-of-the-art instruments such as supercomputers, electron microscopes, ESCA (electron spectroscopy for chemical analysis) systems and a nuclear magnetic resonance spectrometer are used in pursuing materials development and product design and in conducting simulations under various conditions.
D-PARC (Daigo Proving-ground and Research Center) is YOKOHAMAʼs comprehensive tyre test course facility that includes a speed oval course, steering and stability track, comfort test track with multiple surfaces made of materials sourced from around the world and handling test track simulating winding road conditions.
YOKOHAMA at a GlanceSince its establishment in 1917, The Yokohama Rubber Co., Ltd. (YRC) has introduced a wide range of tyre, industrial, golf and other products. For the benefit of every customer and society, we are dedicated to continuously advancing all production, sales and technology development processes within the YOKOHAMA Group in Japan and throughout the world. Our mission is to “deliver the best products at competitive prices and on time.” This, of course, requires the utmost attention to safety and environmental concerns. Each and every member of the YOKOHAMA Group puts great passion and commitment into providing leading technologies and products that meet the needs of the times. Our earnest hope is to contribute to the well-being of people, society and the world.
Passenger Car Tyres
Light Truck Tyres
Off-the-Road Tyres
Tyre Group By developing and manufacturing a wide range of high-quality tyres, we earn the trust of people across the spectrum of society who rely on YOKOHAMA products. These range from car tyres with a distinctive flair to reliable truck and bus tyres that support essential transport and logistics needs and extra-tough off-the-road tyres at resource development, mining and construction sites.
Truck and bus tyres have to adapt to all seasons, surfaces and other conditions, as well as provide reliable basic performance. YOKOHAMA supplies a wide range of truck and bus tyres worldwide that meet such requirements and enable cost-effective operation, efficient running, long product life and uncompromising safety under all circumstances.
RADIC D-PARC
Truck & Bus Tyres
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YOKOHAMAʼs aim is to decrease your cost per kilometer by ensuring increased tread life and even wear without sacrificing other aspects of performance like traction, handling stability, riding comfort, retreadability and fuel economy.These aspects of performance are often trade-offs, but YOKOHAMAʼs engineers have created the technology to maximize each performance factor, without losing out in any area.
A new compound mixing method has increased the durability of tyres.
Traditional Mixing Method
� One Step Mixing & Roll Mixing
Lower Temperature/Higher Torque Mixing Method
� Multi-Step Mixing
RY : Rib (All-Position/Steer/Trailer) TY : Traction-Block (Drive) MY : Rib/Lug (Mixed Service) (All-Position/Steer/Trailer) LY : Lug (Drive) 107ZL : Rib (Zenvironment Series, Long Distance Steer) 104ZR : Rib (Zenvironment Series, Regional Steer) 112R : Rib (Regional Distance Steer/All position)
** YOKOHAMA ORIGINAL TREAD PATTERN CODES**
The traditional multi-step mixing process mixes and kneads the rubber simultaneously.The long periods of mixing result in high temperatures, which tend to cause deterioration in the quality of the rubber.
The new method performs the kneading of the rubber on rollers after the rubber has been mixed. This process results in lower temperatures. It thus minimizes the splitting of the rubberʼs long polymer chains and promotes a more even distribution of the carbon black particles, which are used as a reinforcing agent.
INTRODUCING YOKOHAMA TECHNOLOG IESA new era in the development of truck and bus tyres.
** Do not mix different tyre size designations or constructions on the same axle.
Always use the tyres for their intended service purpose. Please consult your YOKOHAMA distributor for details as some
vehicle operations require specialized tyre fitment.
Tyre Mileage Strong and stretchable rubber
TraditionalMixing
Low Temp. HighTorque Mixing
TraditionalMixing
Low Temp. HighTorque Mixing
Tyre
dur
abili
tyPe
rfor
man
ce
Perf
orm
ance
Carbonn
Rubber/Reinforcing
Agent and other
Rubber/Reinforcing
Agent and other
Mixer
Compound
Mixer
Compound
Compound
Mixer
Compound
Mixer
Compound
Mixer
Compound
Roll
Microscopic imagery reveals the improvement inrubber composition that results from the new
Lower Temperature & Higher Torque Mixing Method
Traditional Mixing Method New Lower TemperatureHigher Torque Mixing Method
Traditional Mixing Method New Lower TemperatureHigher Torque Mixing Method
Rubber (polymer)
Carbonn
Rubber (polymer)
The distribution of carbon particles is more even in rubber produced with the new LowerTemperature/Higher Torque Mixing Method process than in traditionally processed rubber.
The new Lower Temperature & Higher Torque Mixing Method significantlyreduces dioxide obstacles and disperses carbon in rubber evenly.
Dioxide
Soft and less flexible rubber Tough and flexible rubber
Rubber Structure Model
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ECOLOGY-FUEL ECONOMY
50% 100% 150%
Recommended
-20% lower
-30% lower
100%
60%
80%
50% 100% 150%
20%underloaded
normal load
30%overlaoded
150%
70%
100%
50% 100% 150%
60%
30%
100%
100%
60%
80%
Long haul
Regional
Urban
Tyre Mileage Index in %
Tyre Mileage Index in % Tyre Mileage Index in %INFLATION PRESSURE
Tyre Mileage Index in %
Trailer tyre wear is dependent on the sideforce of axles of trailers. YOKOHAMA recommends proper tyre rotation for retreaded tyres also.
The tyre wear depends upon load carried. YOKOHAMA recommends maintaining the correct axle and pay loads.
The proper inflation pressure is essential for maximised performance of all kinds of tyre. YOKOHAMA recommends proper maintenance and utilization of a calibrated gauge/inflation pressure sticker or TPMS.
Frequent “stop and go” results in additional stress and abrasion to tyres.YOKOHAMA recommends mild steering & braking especially while turning and curving in urban and local use.
1st. axle
2nd. axle
3rd. axle
CARRYING LOAD
STOP/GO OPERATION (Braking Abrasion)
TRAILER AXLES (without liftup and/or steer axle)
Regrooving must be undertaken when only between 2 to 3mm of the original tread pattern remains, in accordance with YOKOHAMAʼs recommendations in this booklet.
Tyre Wear Factors
Regrooving
Truck tyres for commercial vehicles must be inflated to a pressure* suitable for the load,speed and condition of use to produce maximum performance in all aspects such as even wear (long mileage), traction and handling stability (riding comfort) in addition to safety issues.
maintains the even road contact for maximised performance.
UNDER INFLATION OVER INFLATION
Tyre pressures should be checked on cold tyres at least every two weeks, using a calibrated pressure gauge. Tyres with lower profiles must be checked strictly due to their less visible sidewall deflection.
causes abnormal tyre deflection,which builds up excessive heat, and risk of failure. It also causes
excessive wear on both shoulders.
increases the risk of impact breaks and other road hazard damage.
It also causes excessivewear in the centre.
Inflation Pressure
PROPER INFLATION
Tyre Construction
Compounds used in the tread depend on the tyreʼs specific application needs. YOKOHAMA has chosen various compounding strategies to minimize treadwear rate, and maximize traction, fuel efficiency, and resistance to fatigue, chipping and scaling.
YOKOHAMA's inner liner is specially designed to minimize air seepage into adjacent areas of the tyre. The quality of the inner liner is critical to prevent air from penetrating into the casing. YOKOHAMAʼs special inner liner compound ensures a significantly longer casing life.
YOKOHAMA tyres feature a belt edge cushion to help prevent separation of the belt edges, and therefore the tread, caused by the scissoring effect of the belts.
Tread
Belt Edge Cushion
Inner Liner
Two or more different compounds are used in YOKOHAMAʼs bead filler (apex rubber) to stiffen the bead for steering response and to control the flexibility of other parts of the tyre.
Bead Filler
Thin, highly adhesive assembly compounds are used in YOKOHAMAʼs tyre casing and belts to prevent separation of the steel cords.
YOKOHAMAʼs special sidewall compounds are selected for high flexibility, excellent durability and high resistance to fatigue and weather cracking.
YOKOHAMAʼs undertread compounds have low heat-generating characteristics, which prevent tread separation.
Belts and Casing
Undertread
Sidewall
YOKOHAMAʼs rim cushion compound is highly resistant to the heat transmitted by the rim.
Rim Cushion
YOKOHAMA: MAXIMIZE YOUR PERFOR MANCERecommendations to ensure the top performace of your YOKOHAMA tyres.
The ecology and fuel economy issues are of great importance to transportation companies. YOKOHAMA tyres are designed to deliver excellent fuel economy with minimized trade-off of other performance aspects such as wet performance & tyre life.
*Check YOKOHAMAʼs recommendation for inflation pressures in this booklet.
50% 100% 150%
107ZL
TY517
TY517(E)
Long Distance Transport
SC GrooveTo improve the shoulder “Step-Down Wear”.
*SC : Stress-wear (uneven wear) Control
① Tread design with special contoured design of the groove walls
② Newly-developed Tread Compound/Deep Tread
③ Wavy Grooves④ Stone Ejectors⑤ SC-Sipe⑥ SC-Groove
Steer axle
New highway steer tyre engineered with innovative “Zenvironment” technologies for ordinal highway operations.●Newly-developed tread compound under “Zenvironment” technology provides longer
mileage and better fuel economy.●New casing compound under “Zenvironment” technologies extend casing life for
multi-retread.●The 6-rib tread design is the perfect steer position high performer. Now enhanced
with over 6,000 sipes, this premium feature provides excellent water evacuation and uniform wear.
RY253Wide base Long haul/Regional use tyre engineered primarily for the trailer axles.RY253 can be used on steer axle to deliver handling performance & shoulder wear resistance.●6-rib tread design enhances even wear & wet traction.●Retreadability from a specially constructed casing.
RY237Steer axle tyre engineered with advanced YOKOHAMAʼs technologies for long-haul operation.●The wide tread design with YOKOHAMAʼs original SC Groove (Stress-wear Control
Groove) is engineered to reduce irregular tread wear and increase mileage.●YOKOHAMA latest profile & construction improves retreadability and durability by
extending casing life.
RY357Wide base highway/regional use tyre for the trailer axles. The RY357 delivers long mileage & shoulder wear resistance on trailer axle use. ●5-rib tread design enhances even wear and wet traction.●Specially constructed casing makes this tyre well-suited for retreading.
TY517(E)M+SDrive axle tyre designed with YOKOHAMAʼs advanced technologies for long-haul operation.●Wide & deep tread design produces long tread life.●Alternated tread block design with 4-straight wide grooves increases even wear without
sacrificing wet traction.●Shallow lug grooves at shoulder minimises shoulder heel & toe wear.
*=TY517 available size
Steer axle
Drive axle
�
� � � �
�
�
�
�
① Wide & Deep tread② Alternated tread block with 4-straight
wide grooves③ Shallow lug grooves
Trailer axles
Trailer axles
RY588All-purpose trailer tyre for long distance/regional operations. (available: 11R22.5 only)●5-rib tread design with straight grooves enhances even wear & wet traction.●Casing construction provides durability & retreadability for trailer service.
Availability of products shown in this document may vary from country to country. Please consult your YOKOHAMA distributor for local availability.Some tyres carry a second load/speed index marking which indicates supplementary operational possibilities.
Steer axle tyre engineered with innovative “Zenvironment” technologies for regional/highway service.●The 5-rib tread design with straight grooves enhances even wear & wet traction.●SC-SIPE (Stress-Wear Control Sipe) design improves abnormal wear on rib edges.●Newly-designed stone ejectors and wavy grooves minimize stone holding & penetration in ordinal regional operation. ●Newly-developed tread compound under “Zenvironment” technology provides longer mileage and better fuel economy.
This technology is available in major product sizes.●New casing compounds under “Zenvironment” technologies extend casing life for multi-retread.
RY023(RY023T)Steer axle tyre for regional/highway service. (RY023T with higher load index only for trailer use.)●Wide 5-rib design delivers long mileage & shoulder wear resistance on steer axle use.●Deep sub-grooves on ribs enhance wet traction.
TY607M+SDrive axle tyre for regional operation.●Extra deep tread design with wide tread produces long tread life for regional service.●Aggressive block tread with lateral lug grooves delivers excellent wet traction.●Alternated block placement with short blocks enhances even wear.
Steer/Trailer axles
Drive axle
① Extra deep design with wide tread
② Agressive block tread with lateral lug grooves
③ Alternated block placement with short blocks
�
�
�
TY303M+SDrive axle tyre for regional/highway service.●Aggressive tread design provides wet traction throughout all stages of wear for regional/city service.●The tread compound resists against cutting/chipping & extends mileage.
Drive axle
112RSteer/All Position
Specially designed for ASEAN market●Enhanced cut resistance and chipping compared with 104ZR ●Wide tread enhances wear resistance and high grip●Adopt new pattern considering chipping
CAP CompoundFeatured performance - Cut resistanceAdopting “High grade carbon” makes it strong for cut & chipping.High elongation at break improves cut resistance performance.
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NEW
Performance chart Profile comparison
Tread Pattern Side Branding
Tread & Side Design
Improved chipping performance by 10% compared with 104ZR.
Improved anti cut performance by wider profile with high rigidity ribs.
10% wider than 104ZR
112R
104ZR
Wear Resistance Cut Resistance Chipping
100 100 110
100
112R
104ZR 100 100
Chipping
Cut Resistance
Wear Resistance
80 85 90 95 100 105 110 115
112R 104ZR 112R 104ZR
Availability of products shown in this document may vary from country to country. Please consult your YOKOHAMA distributor for local availability.Some tyres carry a second load/speed index marking which indicates supplementary operational possibilities.
TY287M+SMulti purpose tyre for regional operations on paved road. ●Good traction on rainy and snowy roads. ●At approximately 60% of tread wear, the tread design becomes a rib pattern suitable for normal highway use.
All positions
RY253Wide base Long haul/Regional use tyre engineered primarily for the trailer axles.RY253 can be used on steer axle to deliver handling performance & shoulder wear resistance.●6-rib tread design enhances even wear & wet traction.●Retreadability from a specially constructed casing.
Y785RAll purpose tyres including low platform trailer tyre.●5-rib tread design with straight grooves enhances even wear & wet traction.●Casing construction provides durability & retreadability for heavy trailer service.
All positions
Y793RAll-purpose,all-position tyre for normal regional/city service.●Pattern design with wide tread produces long mileage.●The tread compound resists against cutting/chipping.
All positions
Trailer axles
RY357Wide base highway/regional use tyre for the trailer axles. The RY357 delivers long mileage & shoulder wear resistance on trailer axle use. ●5-rib tread design enhances even wear and wet traction.●Specially constructed casing makes this tyre well-suited for retreading.
Trailer axles
RY588All-purpose trailer tyre for long distance/regional operations. (available: 11R22.5 only)●5-rib tread design with straight grooves enhances even wear & wet traction.●Casing construction provides durability & retreadability for trailer service.
14 15
Availability of products shown in this document may vary from country to country. Please consult your YOKOHAMA distributor for local availability.Some tyres carry a second load/speed index marking which indicates supplementary operational possibilities.
All-purpose, all- position tyre for on & off construction-site operation. (Available only tubeless sizes)●Deeper & wider tread increases the mileage while the solid shoulder ribs resist against shoulder wear.●3 or 4 waved grooves produce traction and drainage.●Stone ejectors & V-shaped grooves decrease stone holding to enhance retreadability.
Drive axle tyre for logging and quarrying operations with some short haul highway use possible.●Engineered to provide dependable traction and durability.●Specially deep tread depth and cut-resistant tread compound deliver good tyre mileage.
MY547M+SAll-purpose, all-position tyre foron & off construction-site operation. (Available only tube- type sizes)●Deeper tread produces longer mileage while the shoulder ribs resist against shoulder wear.●3 zigzag grooves with shoulder lugs produce traction and enhance smooth wear in local operation.
MY507AM+SWide base ON & OFF trailer tyre for on & off construction-site operation.●Wide & deep tread design produces long tread life.●Aggressive traction tread with transverse sub grooves enhances traction over rough surfaces.●Stone ejectors & funnel-shaped grooves decrease stone holding to enhance retreadability.
Y773All-purpose, all-position tyre for on & off construction-site operation such as dump or logging.●Wide tread design with shoulder lugs delivers long mileage & traction.●The tread compound resists against cutting/chipping for extended mileage & retreadability.
Steer axle/All positions
Steer axle/All positions Trailer axle
LY717M+SDrive axle tyre for on & off construction-site operation.●Aggressive 4-block tread design with shoulder lugs produces dependable traction on rough surfaces.●Deeper & wider tread increase the mileage.●Tapered tread grooves reduce stone holding while newly-developed tread compound resists against
cutting/chipping.
Drive axle
LY053Drive axle
�
� �
① Deeper & wider tread ② 3 waved grooves③ Stone ejectors & V-shaped
grooves① Deeper & wider tread ② Aggressive 4-block tread design
① Deeper tread② 3 zigzag grooves with shoulder lugs
�
�
�
�
On/Off Road Short Distance Transport
16 17
Availability of products shown in this document may vary from country to country. Please consult your YOKOHAMA distributor for local availability.Some tyres carry a second load/speed index marking which indicates supplementary operational possibilities.
All position tyre for urban bus operation. ●Extra deep tread with 4-rib design enhances long mileage & low cost per kilometer on severe abrasion operation.●Sidewall protections minimise scuff damage & abrasion from curb.
MY248All positions
All-position radial for urban operating trucks and buses.●Deep tread and shoulder lug produce excellent long life and traction.
Short Distance, Urban,Local Multistop Transport/Light Truck
LT151RFor Light Truck Tyre ●Strong resistance to wear and long-lasting performance.●Total balanced performance tyre
— wear resistance, durability, wet performance and anti-uneven wear —
Light Truck
Causes:
Typical Patterns of Uneven Wear
The centre of the tread wearingfaster than the shoulders.
Wavy conditions are created on some partof, or on whole circumference, of tread.
Excessive wear in a part of the tread.
The shoulder wearing faster thanthe centre of the tread.
Some parts of tread wearing less than theother parts, forming islands or coastlines.
One side of blocks and/or lugs on the tread wears faster than other side circumferentially.
Both shoulders wearing faster than the centre of the tread.
Edges of the ribs except the outer edge of the shoulder ribs wearing faster than the tread surface, like riverbeds.
One or two ribs in the center of the treadwearing faster than the other ribs.
The blocks or the ribs tread wearing in a feather edge pattern.
One or several parts of the tread wearingdiagonally faster than the other parts ofthe tread surface.
The outer portion of the shoulder rib wears faster than the inner portion.
Direction of Rotation
Centre Wear Wavy (Polygonal) Wear Spot Wear
One-Sided Wear Step Wear Island Wear
Heel & Toe Wear Shoulder Wear River Wear
Rib-punching Feather Edge Wear Diagonal Wear
The Prevention of Uneven WearIt is necessary to prevent uneven wear to reduce expenditure for the tyres.
The most crucial factor to avoid uneven wear is maintaining proper air pressure.
Influence ofuneven wear
The main causesof degeneration
●Mileage will be shorter.●Driving stability deteriorates.●Fuel cost increases.
●Air pressure is not correct.●Difference of outside diameter or air
pressure of dual tyres.●Incorrect alignment.●Lack of vehicle maintenance.
18 19
1. Excessive run-out of tyre & rim assembly.
2. Dynamic imbalance of tyre & assembly.
3. Faulty suspensions & rotations such as axle beams, bearing & brake shoes.
rotating parts such as axle beams, bearing & brake shoes.
3. Excessive run-out of tyre & rim assembly.
4. Dynamic imbalance of tyre & assembly.
Causes:1. Overinflation.2. Improper matching of tyres
and rims.
Causes:1. Toe-in or camber of steer axle
influence.2. Frequent sharp turns in
corner, rapid changing of lanes at high-speed.
3. Improper air pressure, wheel alignment or mismatch of tyres and rims.
4. Road inclination.
Causes:1. Repeated sharp turns in
cornering and frequent, rapid changing of lanes at high-speed.
2. Improper wheel alignment.3. Faulty suspensions and faulty
rotating parts such as axle beams, bearings and brake shoes.
Causes:1. Toe-in or camber of steer
axle influence.2. Repeated sharp turns at a
high speed when cornering.3. Road inclination.
Causes:1. Under-inflation and /or
overload.2. Repeated sharp turns at
high-speed when cornering.3. Mismatch of tyres and rims.
Causes:1. Underinflation and/or overload.2. Repeated sharp turns in
cornering and frequent, rapid changing of lanes at high speed.
River wear tends to be created on steering or trailer axles.
Causes:1. Under-inflation and/or
overload.2. Sudden braking or rapid
acceleration.
Causes:1. Improper wheel alignment
(especially faulty toe-in).2. Bent axle beam. 3. Under-inflation.4. Repeated sharp turns at high
speed when cornering.5. Road inclination.
Causes:1. Faulty suspensions, faulty
rotating parts and/or brake parts such as axle beams, bearings and brake shoes.
2. Improper wheel alignment.
Causes:1. Faulty suspension or
rotation of bearing and axle beams.
2. Under-inflation.3. Improper wheel alignment.4. Difference between outside
diameter or air pressure of dual tyres.Availability of products shown in this document may vary from country to country. Please consult your YOKOHAMA distributor for local availability.
Some tyres carry a second load/speed index marking which indicates supplementary operational possibilities.
DEPTH (D)3.0 mm 3.0 mm 2.5 mm 3.0 mm 3.0 mm 3.0 mm
Pattern when new
Pattern after regrooved
Pattern when 70% worn
LY053
TYRE SIZE DIMENSION OF REGROOVE
11.00R2011R22.512R22.5
WIDTH (W)7.0 mm7.0 mm7.0 mm
DEPTH (D)3.0 mm3.0 mm2.5 mm
Pattern when new
Pattern after regrooved
Pattern when 70% worn
MY507AM+S
TYRE SIZE DIMENSION OF REGROOVE
385/65R22.5425/65R22.5445/65R22.5
WIDTH (W)7.0 mm7.0 mm7.0 mm
DEPTH (D)3.0 mm3.0 mm3.0 mm
Pattern when new
Pattern after regrooved
Pattern when 70% worn
MY248
TYRE SIZE DIMENSION OF REGROOVE
11.00R20WIDTH (W)
7.0 mmDEPTH (D)
2.5 mm
Pattern when new
Pattern after regrooved
Pattern when 70% worn
TY303M+S
TYRE SIZE DIMENSION OF REGROOVE
265/70R19.5285/70R19.5
WIDTH (W)7.0 mm7.0 mm
DEPTH (D)2.5 mm2.5 mm
Pattern when new
Pattern after regrooved
Pattern when 70% worn
112R
TYRE SIZE DIMENSION OF REGROOVE
11R22.5295/80R22.5
WIDTH (W)7.0 mm7.0 mm
DEPTH (D)2.5 mm2.5 mm
Pattern when new
Pattern after regrooved
Pattern when 70% worn
Y785R
TYRE SIZE DIMENSION OF REGROOVE
10.00R208.25R20
WIDTH (W)7.0 mm7.0 mm
DEPTH (D)3.0 mm2.5 mm
Pattern when new
Pattern after regrooved
Pattern when 70% worn
Y793R
TYRE SIZE DIMENSION OF REGROOVE
9R22.5WIDTH (W)
7.0 mmDEPTH (D)
2.5 mm
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NOTE: Regarding “ * ” marked sizes tyre, YOKOHAMA may give you “additional servioce” for some patterns. For details, please contact your YOKOHAMA distributor.
LOAD AND INFLATION PRESSURE TABLE This table shows the load capacity (kg) per axle at tyre pressure (kPa / bar / psi) for normal operation based on ETRTO standard.Some vehicle operation require specialized inflation pressure.Please contact your YOKOHAMA distributor for details.